💾 Data Updated: Latest version • Last updated: December 09, 2025

9902.07.77 - (3S,4S,5S,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol (D-Mannose) (CAS No. 3458-28-4) (provided for in subheading 2940.00.60)

Details

FieldValue
Unit of QuantityN/A
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)No change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS category, 9902.07.77, specifically covers D-Mannose, identified chemically as (3S,4S,5S,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol, and associated with CAS Number 3458-28-4. This classification is part of Chapter 99, which pertains to temporary legislation, modifications to trade agreements, and additional import restrictions enacted under Section 22 of the Agricultural Adjustment Act. While the base tariff classification for D-Mannose would typically be found in Chapter 29, subheading 2940.00.60, this 9900 series code indicates special, often temporary, regulatory treatment.

Distinguishing this category from its sibling categories, which predominantly cover live animals under Chapter 01, is straightforward. This node addresses a specific chemical compound, D-Mannose, which is a simple sugar with a distinct molecular structure and chemical properties. The siblings are concerned with the import of live animals for various agricultural or other purposes. The presence of this entry in Chapter 99 signifies that its importation is subject to particular administrative or policy-driven controls that are separate from the standard classification of goods.

As this node is a leaf node, it does not have further subcategories within the HTS structure. Therefore, the focus for classification purposes under 9902.07.77 is on the definitive identification of D-Mannose. Importers must ensure that the goods precisely match the chemical description and CAS number provided, and crucially, they must be aware of and comply with any specific proclamations, restrictions, or reporting requirements associated with this temporary or special classification provision.

Frequently Asked Questions

›What is HTS code 9902.07.77?
HTS code 9902.07.77 covers (3S,4S,5S,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol (D-Mannose) (CAS No. 3458-28-4) (provided for in subheading 2940.00.60) under the US Harmonized Tariff Schedule. It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What products are classified under 9902.07.77?
This classification covers (3S,4S,5S,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol (D-Mannose) (CAS No. 3458-28-4) (provided for in subheading 2940.00.60). It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What is the import duty rate for 9902.07.77?
The general rate of duty for HTS 9902.07.77 is Free. Special preferential rates may apply: No change. The Column 2 rate is No change.

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